Question 12 A solid steel sphere of radius 50 cm is heated to 3000 K. If the spher acts as a perfect radiator, calculate the amount of heat it will radiate after 1 min.

Q: 2. A spark plug in an automobile engine consists of two metal conductors that are separated by a…

A: 2) distance (d) between two metal conductors= 0.5 mm = 5×10-4 mMagnitude of electric field (E) =…

Q: C. 178 m/s D. 163 m/s from rest, and rolls for 3.0 s. 19: A ball rolls down a hill with a constant…

A: Given data:  Acceleration (a) = 3.5 m/s2 Initial velocity (v0) = 0 m/s Time (t) = 3.0 s Required:…

Q: • High-energy cancer treatment. Scientists are working on a new technique to ķill cancer cells by…

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Q: General Directions: Read each questions and directions carefully and write your answers and…

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Q: 4. A cannon is pointed upward at an angleof 30 degrees with respect to the horizontal ground. If the…

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Q: 4. Coulomb's law and Newton's law of gravitation are similar in structure. Can Gauss's law be…

A: Yes ,we can use Gauss law for Gravitational field.

Q: und speeds up at 3.0 m/s? after the traffic light turns Ve gone when it is traveling at 18 m/s? A.…

A: Given data: Initial velocity (v0) = 16.0 m/s Acceleration (a) = 0.25 m/s2  Time (t) = 20 s Required:…

Q: a hard-thrown 0.410-kg 42. What is the speed of a garbage truck that is 1.20×10*kg and is initially…

A: Given  Mass of garbage truck M=1.20×104 kg Initial speed of garbage truck u1=25m/s Mass of trash can…

Q: A car is placed on a 10 feet diameter circular piston. The smaller piston has diameter of 6 inches…

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Q: Find the angle between A = 10a + 2a, and B 4a, + 0.5a¸ , using dot product. y y 3 Answer:

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Q: Give the vectors M = -10å, + 4ảy-8ã, and vectors N = 8å, + 7ãy-2ãz, find the following: 1. a unit…

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Q: Question 13

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Q: 3) Is there any kind of material that when inserted between parallel plate capacitors would reduce…

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Q: The curve surface represented by AB in the figure is the surface of the quadrant of a circular…

A: Given The quadrant of a circular cylinder 3 m long r = 1.5 m , z = 0 Determine the horizontal and…

Q: (1) A student claims that capacitors in parallel combinations have greater equivalent capacitance…

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Q: 3. If a car is traveling at 20 meters per second in a straight line, how many meters will it take…

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Q: oice s on st.oplegre You place a 7.50-kg television on a spring scale If the scale reads 78.4 N,…

A: Given data:  Mass (m) = 7.50 kg Weight (W) = 78.4 N Required: The acceleration due to gravity (g)

Q: 124. The diagram below represents a 10.-newton block sliding at constant speed down a plane that…

A: Since object is moving with constant speed hence acceleration acting on it is zero so net force…

Q: Problem 8: Penny is adjusting the position of a stand up piano of mass m, = 220 kg in her living…

A: Part (a) Minimum force Fs is, Fs,min=Ffr2=μsmpg2

Q: An angle of a circle with a 2 m radius is A0 = 20°. What is the corresponding arc length As? 11. D.…

A: 11. radius of circle,r=2 m∆θ=20

Q: An oil tank is in the shape of a right-circular cylinder with a radius of r meters and its axis is…

A: An object is considered to be under pressure when it is subjected to physical force. Each unit of…

Q: light pallet is at rest on the ground with a stone of mass 30 allet by providing a force of 310 N…

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Q: 8. From Ampere's law, it can be shown that the magnetic field B inside a long solenoid is B = HonI…

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Q: (5) A 15.0A current produces a B field at the center of an arc of angle n/4 radians and radius…

A: (5) Given Current (I) = 15.0 A Radius (r)  = 0.500 m Angle θ  = π4 radians

Q: Jance? How far, on 13) Given the diagram below, what is the net torque about an axis through point…

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Q: 74 Vectors A and B have identical magnitudes of 5,0 units. Find the angle between them if À + B =…

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Q: 13. Two polarizers are oriented at 68° to one another. If unpolarized light enters the first…

A: When multiple different questions are given then according to the guidelines only the first question…

Q: 5. What are the factors that affect the capacitance of a capacitor? How does each fa 4/5 the…

A: To discuss the factors on which the capacitance of a capacitor  depend.

Q: Given A = y 4a + a_and vectors B = 2a_ + 3a , find the scalar projection of A on B. %3D 2 Answer:

A: Given  A→=4ay→+az→B→=2ax→+3ay→ Scalar projection of A→ on B→ is given by, s=A→·B→B

Q: Question 8: A rectangular loop of wire wraps around your (open, vertical) laptop screen (31.0 cm by…

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Q: Solve the following problems. ANSWER ONLY TWO OUT OF THREE QUESTIONS. Show your complete solutions.…

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Q: 27. A 48 kg student runs down the sidewalk and jumps with a horizontal speed of 3.8 m/s onto a…

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Q: n identical cells each of e.m.f E and internal resistance r are connected in parallel. An external…

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Q: 2. What is the maximum length of a wrench needed to apply 90 Nm torque to the bolts on a motorcycle…

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Q: Question 10 Its separates the inside of your home, which is at 30°C, from the outside, which is at…

A: Solution:-Given thatDimension of window=2 m by 3 mthickness of window (L)=10 cm=0.1 mInside…

Q: 4. Suppose the velocity(v) of a car at any time(t) is given by the equation 60m/s + (0.5m/ Derive…

A: The instantaneous acceleration (a) of a body is defined as the rate of change of its velocity.…

Q: i. How does the frequency change if you double the spring constant and double the mass of a…

A: solution of the i,j,k,l parts solved in below step.

Q: 1. Two mirrors make an angle of 90 degrees with each other, as in the figure above. A ray is…

A: Part 1 The ray diagram for the given situation can be drawn as below,

Q: 8. A 15kg rectangular block with a length of 80cm and a width of 50cm rests on a table. What…

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Q: 8@ 13. A charge +Q is sitting at the origin (0,00mA closed sphere with a radius R surrounds the…

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Q: 34. What is the atmospheric pressure? 1X10^5 35. What is the hydrostatic pressure experienced b

A: Part (34): Atmospheric pressure: Atmospheric pressure, also known as barometric pressure, is the…

Q: 7. Two charged objects have a attractive force of 0.028 N. If the distance separating the objects is…

A: Colomb’s law Colomb’s law states that the magnitude of the electrostatic force of attraction or…

Q: 1. A man is sitting on a train with a constant velocity of 10 m/s East. The man then stands up and…

A: Due the direction of motion the velocity will change as direction  changes

Q: 1. For all questions, assume T = 300K unless specified, VT = kT/q = 0.026V, q = 1.6x10-19, ni =…

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